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The equation y=A cos^(2) (2pi nt -2 pi (...

The equation `y=A cos^(2) (2pi nt -2 pi (x)/(lambda))` represents a wave with

A

Amplitude `A//2` , frequency 2n and wavelength `lambda//2`

B

Amplitude `A//2` , frequency 2n and wavelength `lambda`

C

Amplitude A , frequency 2n and wavelength `2lambda`

D

Amplitude A , frequency n and waves

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The correct Answer is:
a
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